Britain, however, has ended up specializing in the ones you don't see as much of: defense aerospace, making drive shafts for cars, pills and drugs, designing chips that go into 94 percent of the world's mobile phones.

The Germans are clear about what they do - cars and machine tools; the Japanese are clear about what they do - electronics; the Chinese are clear about what they do - they're the workshop of the world.

We're seeing the development of tactics in Iraq, such as suicide bombing. Insurgents have been driving cars with explosives into hotels and office buildings. The recruitment may be even more prolific outside Iraq.

Cars have a large engine in the front and you have a gearbox, which is cumbersome. Electric cars don't have this problem. The motor is much smaller, the battery is below you. This will allow you to play with different shapes.

Factory farming is one of the biggest contributors to the most serious environmental problems. The meat industry causes more greenhouse gas emissions than all the cars, trucks, planes and ships in the world.